Home Organizations Massachusetts Every cause Civil rights and advocacy 253 Environment and climate 1,032 Labor unions and worker centers 980 Housing and homelessness 815 Immigrant services and rights 126 Food banks and hunger 233 Legal aid 49 Voting and civic participation 55 Community health and reproductive care 65 LGBTQ+ services and rights 55 Criminal justice reform and reentry 56 Civil rights and advocacy (253) Organization City Type Revenue International Institute Of New England IncEIN 04-2104325 · filings Boston Charity, 501(c)(3) $28.5 million Accelerate Change IncEIN 82-3400062 · filings Boston Charity, 501(c)(3) $28.2 million Glbtq Legal Advocates & Defenders IncEIN 04-2660498 · filings Boston Charity, 501(c)(3) $11.6 million Aclu Foundation Of Massachusetts IncEIN 47-3686152 · filings Boston Charity, 501(c)(3) $8.1 million Keshet IncEIN 48-1278664 · filings Newton Charity, 501(c)(3) $7.4 million One Fair Wage IncEIN 85-0692228 · filings Cambridge Charity, 501(c)(3) $7.4 million Cultural Survival IncEIN 23-7182593 · filings Cambridge Charity, 501(c)(3) $7.2 million Muckrock Foundation IncorporatedEIN 81-1485228 · filings Boston Charity, 501(c)(3) $6.3 million Project On Predatory Student Lending IncEIN 87-4582545 · filings Jamaica Plain Charity, 501(c)(3) $5.9 million New Commonwealth Racial Equity And Social Justice Fund IncEIN 85-1850139 · filings Roxbury Charity, 501(c)(3) $5.8 million Justice Systems PartnersEIN 46-5733688 · filings South Easton Charity, 501(c)(3) $5.5 million A Healthier Democracy IncEIN 86-2040929 · filings Boston Charity, 501(c)(3) $4.5 million
The 253 largest →
Environment and climate (1,032) Organization City Type Revenue Iso New England IncEIN 04-3372500 · filings Holyoke Charity, 501(c)(3) $303.3 million Trustees Of ReservationsEIN 04-2105780 · filings Boston Charity, 501(c)(3) $57.9 million Massachusetts Audubon Society IncEIN 04-2104702 · filings Lincoln Charity, 501(c)(3) $56.2 million Clean Air Task Force IncEIN 04-3512550 · filings Boston Charity, 501(c)(3) $48.6 million Appalachian Mountain ClubEIN 04-6001677 · filings Charlestown Charity, 501(c)(3) $43.6 million Ceres IncEIN 22-3053747 · filings Boston Charity, 501(c)(3) $33.6 million Deploy-us IncEIN 47-2818525 · filings Boston Charity, 501(c)(3) $32.0 million New England Interstate Water Pollution Control CommissionEIN 04-6004735 · filings Lowell Charity, 501(c)(3) $31.7 million Conservation Law Foundation IncEIN 04-6149986 · filings Boston Charity, 501(c)(3) $24.2 million Project Innerspace IncEIN 87-3285334 · filings Boston Charity, 501(c)(3) $23.1 million Massachusetts Service Alliance IncEIN 04-3088234 · filings Boston Charity, 501(c)(3) $19.3 million Nantucket Conservation Foundation IncEIN 04-2373794 · filings Nantucket Charity, 501(c)(3) $17.5 million
The 300 largest →
Labor unions and worker centers (980) Organization City Type Revenue Electrical Industry Labor Management Cooperation TrEIN 04-3398237 · filings Dorchester Labor organization, 501(c)(5) $65.6 million Massachusetts Teachers AssociationEIN 04-1591200 · filings Quincy Labor organization, 501(c)(5) $63.4 million United Brotherhood Of Carpenters & Joiners Of AmericaEIN 04-3322535 · filings Dorchester Labor organization, 501(c)(5) $55.1 million Laborers International Union Of North AmericaEIN 04-2424311 · filings Hopkinton Labor organization, 501(c)(5) $33.3 million National Association Of Government EmployeesEIN 04-2209421 · filings Quincy Labor organization, 501(c)(5) $27.9 million International Brotherhood Of Electrical WorkersEIN 04-1472080 · filings Dorchester Labor organization, 501(c)(5) $24.1 million Service Employees International UnionEIN 04-6190454 · filings Marlborough Labor organization, 501(c)(5) $22.1 million American Federation Of State County & Municipal EmployeesEIN 04-2607134 · filings Boston Labor organization, 501(c)(5) $21.2 million International Association Of Sheet Metal Air Rail TransportationEIN 86-2091145 · filings Boston Labor organization, 501(c)(5) $14.6 million Ironworkers Union Local 7EIN 04-1473615 · filings South Boston Labor organization, 501(c)(5) $14.0 million North Atlantic States Carpenters Labor Management ProgramEIN 22-2520206 · filings Boston Labor organization, 501(c)(5) $13.9 million International Brotherhood Of TeamstersEIN 04-1172100 · filings Boston Labor organization, 501(c)(5) $13.7 million
The 300 largest →
Housing and homelessness (815) Organization City Type Revenue Metropolitan Boston Housing Partnership IncEIN 04-2775991 · filings Boston Charity, 501(c)(3) $406.4 million Way Finders IncEIN 04-2518368 · filings Springfield Charity, 501(c)(3) $160.5 million Neighborhood Housing Services Of The South Shore IncEIN 04-2732439 · filings Quincy Charity, 501(c)(3) $153.5 million Preservation Of Affordable Housing IncEIN 31-1616634 · filings Boston Charity, 501(c)(3) $136.7 million Community Builders IncEIN 04-2324773 · filings Boston Charity, 501(c)(3) $109.2 million Rth Mission Park Realty CorporationEIN 46-3458076 · filings Boston Charity, 501(c)(3) $68.3 million Heading Home IncEIN 23-7364546 · filings Boston Charity, 501(c)(3) $59.6 million Housing Assistance CorporationEIN 23-7431255 · filings Hyannis Charity, 501(c)(3) $56.8 million Father Bills & Mainspring IncEIN 22-2538039 · filings Brockton Charity, 501(c)(3) $53.3 million Homes For Our Troops IncEIN 54-2143612 · filings Taunton Charity, 501(c)(3) $46.0 million Turning Point IncEIN 04-2479435 · filings Newburyport Charity, 501(c)(3) $34.4 million Justliving Communities CorpEIN 87-3705424 · filings Lincoln Charity, 501(c)(3) $31.9 million
The 300 largest →
Immigrant services and rights (126) Organization City Type Revenue Immigrant Family Services Institute IncEIN 47-4400495 · filings Mattapan Charity, 501(c)(3) $10.0 million American Friends Of Libi IncEIN 32-0081620 · filings Brighton Charity, 501(c)(3) $8.1 million Massachusetts Immigrant And Refugee Advocacy Coalition IncEIN 22-3115048 · filings Boston Charity, 501(c)(3) $7.8 million Refugee And Immigrant Assistance Center IncEIN 04-3430294 · filings Roxbury Charity, 501(c)(3) $7.3 million Asian American Civic Association IncEIN 04-2476258 · filings Boston Charity, 501(c)(3) $5.4 million Rian Immigrant Center IncEIN 04-3063382 · filings Boston Charity, 501(c)(3) $5.3 million African Community Economic Development Of New EnglandEIN 51-0419358 · filings Boston Charity, 501(c)(3) $4.9 million Massachusetts Alliance Of Portuguese Speakers IncEIN 04-2596270 · filings Cambridge Charity, 501(c)(3) $4.9 million Chinese Consolidated Benevolent Association Of New EnglandEIN 04-2735267 · filings Boston Charity, 501(c)(3) $3.5 million Brazilian Worker Center IncEIN 04-3273525 · filings Allston Charity, 501(c)(3) $2.9 million Spanish American Center IncEIN 04-2761759 · filings Leominster Charity, 501(c)(3) $2.7 million Asian American Resource Workshop IncEIN 04-2707980 · filings Dorchester Charity, 501(c)(3) $2.6 million
The 126 largest →
Food banks and hunger (233) Organization City Type Revenue South Shore Elder Services IncEIN 04-2596213 · filings Braintree Charity, 501(c)(3) $51.1 million Worcester County Food Bank IncEIN 04-3071457 · filings Shrewsbury Charity, 501(c)(3) $21.6 million Project Bread - The Walk For Hunger IncEIN 04-2931195 · filings East Boston Charity, 501(c)(3) $17.3 million Boston Area Gleaners IncEIN 30-0434755 · filings Acton Charity, 501(c)(3) $8.6 million Merrimack Valley Food Bank IncEIN 22-3241609 · filings Lowell Charity, 501(c)(3) $6.7 million Island Grown Initiative LtdEIN 20-5773892 · filings Vineyard Hvn Charity, 501(c)(3) $6.7 million Family Pantry Of Cape Cod Corp TheEIN 22-3079904 · filings Harwich Charity, 501(c)(3) $6.2 million Food Link IncEIN 47-1840355 · filings Arlington Charity, 501(c)(3) $5.5 million The Salem Pantry IncEIN 20-1691756 · filings Salem Charity, 501(c)(3) $4.5 million Open Table IncEIN 04-3048933 · filings Concord Charity, 501(c)(3) $4.1 million Neighbors In Need IncEIN 22-2481699 · filings Lawrence Charity, 501(c)(3) $3.7 million Bread & Roses IncEIN 04-2768119 · filings Lawrence Charity, 501(c)(3) $3.3 million
The 233 largest →
Legal aid (49) Organization City Type Revenue Massachusetts Legal AssistanceEIN 04-2790762 · filings Boston Charity, 501(c)(3) $82.3 million South Coastal Counties Legal Services IncEIN 04-3330208 · filings Fall River Charity, 501(c)(3) $16.4 million National Consumer Law Center IncEIN 04-2488502 · filings Boston Charity, 501(c)(3) $14.5 million Northeast Legal Aid IncEIN 23-7381007 · filings Lawrence Charity, 501(c)(3) $12.9 million Massachusetts Law Reform Institute IncEIN 04-6004303 · filings Boston Charity, 501(c)(3) $9.9 million Disability Law Center IncEIN 04-2741869 · filings Boston Charity, 501(c)(3) $5.0 million New England Innocence ProjectEIN 20-6187760 · filings Cambridge Charity, 501(c)(3) $4.5 million Volunteer Lawyers Project Of The Boston Bar Association IncEIN 22-2486215 · filings Boston Charity, 501(c)(3) $4.0 million Lawyers For Civil Rights IncEIN 04-3490614 · filings Boston Charity, 501(c)(3) $3.5 million Center For Public RepresentationEIN 04-2760470 · filings Easthampton Charity, 501(c)(3) $3.5 million International Bridges To JusticeEIN 31-1771358 · filings Boston Charity, 501(c)(3) $2.8 million Political Asylum Immigration Representation Project IncEIN 22-3003501 · filings Boston Charity, 501(c)(3) $2.6 million
The 49 largest →
Voting and civic participation (55) Organization City Type Revenue A Healthier Democracy IncEIN 86-2040929 · filings Boston Charity, 501(c)(3) $4.5 million Pro-democracy CenterEIN 93-2176499 · filings Foxborough Charity, 501(c)(3) $3.7 million Prison Policy Initiative IncEIN 20-3671130 · filings Northampton Charity, 501(c)(3) $3.1 million Fight For The Future Education FundEIN 45-2852041 · filings Boston Charity, 501(c)(3) $2.3 million Neighbor To Neighbor Massachusetts Education Fund IncEIN 04-3507716 · filings Worcester Charity, 501(c)(3) $2.2 million Nonprofit Vote IncEIN 20-4568862 · filings Waltham Charity, 501(c)(3) $1.2 million Chilmark Town Affairs Council IncEIN 22-3283667 · filings Chilmark Charity, 501(c)(3) $580,157 Uss Massachusetts Commissioning Foundation IncEIN 85-3310256 · filings Arlington Charity, 501(c)(3) $321,894 Massachusetts Voter EducationEIN 04-3574060 · filings Boston Charity, 501(c)(3) $280,447 Massachusetts Fiscal Alliance IncEIN 27-3119044 · filings Boston Advocacy, 501(c)(4) $279,590 Bedford CitizenEIN 46-0777549 · filings Bedford Charity, 501(c)(3) $207,851 League Of Women Voters Lotte E Scharfman Memorial FundEIN 23-7147454 · filings Boston Charity, 501(c)(3) $193,646
The 55 largest →
Community health and reproductive care (65) Organization City Type Revenue Neighborhealth CorporationEIN 23-7425849 · filings Boston Charity, 501(c)(3) $277.7 million Harbor Health Services IncEIN 23-7100550 · filings Mattapan Charity, 501(c)(3) $110.9 million Greater Lawrence Family Health Center IncEIN 04-2708824 · filings Methuen Charity, 501(c)(3) $110.9 million Signature Healthcare Medical Group IncEIN 04-3306782 · filings Brockton Charity, 501(c)(3) $87.9 million Lowell Community Health Center IncEIN 04-2881348 · filings Lowell Charity, 501(c)(3) $76.5 million Codman Square Health Center IncEIN 04-2678774 · filings Dorchester Charity, 501(c)(3) $64.6 million Edward M Kennedy Community Health Center IncEIN 04-2513817 · filings Worcester Charity, 501(c)(3) $56.2 million Caring Health Center IncEIN 04-2620040 · filings Springfield Charity, 501(c)(3) $55.1 million Manet Community Health Center IncEIN 04-2646695 · filings North Quincy Charity, 501(c)(3) $36.2 million Whittier Street Health Center Committere IncEIN 04-2619517 · filings Roxbury Charity, 501(c)(3) $35.2 million Planned Parenthood League Of Massachusetts IncEIN 04-2698497 · filings Boston Charity, 501(c)(3) $32.8 million North Shore Community Health IncEIN 04-2610447 · filings Salem Charity, 501(c)(3) $31.6 million
The 65 largest →
LGBTQ+ services and rights (55) Organization City Type Revenue Glbtq Legal Advocates & Defenders IncEIN 04-2660498 · filings Boston Charity, 501(c)(3) $11.6 million Keshet IncEIN 48-1278664 · filings Newton Charity, 501(c)(3) $7.4 million Ally Coalition IncEIN 46-0585029 · filings Cambridge Charity, 501(c)(3) $1.0 million Transgender Emergency Fund Of Ma IncEIN 81-2527742 · filings Dorchester Charity, 501(c)(3) $726,756 Out Metrowest IncEIN 46-5712986 · filings Framingham Charity, 501(c)(3) $708,856 South Coast Lgbtq Network IncEIN 82-2601799 · filings New Bedford Charity, 501(c)(3) $534,862 Boston Lesbigay Urban FoundationEIN 85-1908536 · filings Roxbury Charity, 501(c)(3) $400,208 Sexual Minorities Uganda Usa IncorporatedEIN 82-1321263 · filings Boston Charity, 501(c)(3) $238,559 Massequality Education Fund Org IncEIN 20-0816574 · filings Worcester Charity, 501(c)(3) $231,648 Berkshire Pride IncEIN 88-4260268 · filings Pittsfield Charity, 501(c)(3) $182,506 OutstandinglifeEIN 93-3986737 · filings Jamaica Plain Charity, 501(c)(3) $179,009 Boston Sisters Of The Convent Of The CommonwealthEIN 27-3246065 · filings Malden Charity, 501(c)(3) $133,892
The 55 largest →
Criminal justice reform and reentry (56) Organization City Type Revenue Justice Resource Institute IncEIN 04-2526357 · filings Needham Charity, 501(c)(3) $279.1 million Community Resources For Justice IncEIN 04-3461434 · filings Boston Charity, 501(c)(3) $94.7 million New Commonwealth Racial Equity And Social Justice Fund IncEIN 85-1850139 · filings Roxbury Charity, 501(c)(3) $5.8 million Latin American Health Alliance Ofcentral Massachusetts IncEIN 20-5359235 · filings Worcester Charity, 501(c)(3) $2.2 million Redress MovementEIN 88-0717262 · filings West Tisbury Charity, 501(c)(3) $1.3 million Second Street Second Chances IncEIN 87-4620589 · filings Pittsfield Charity, 501(c)(3) $789,474 Partakers IncEIN 04-3379946 · filings Auburndale Charity, 501(c)(3) $728,103 Penikese Island School IncEIN 23-7303535 · filings Woods Hole Charity, 501(c)(3) $601,705 Thrive Communities Of Massachusetts IncEIN 88-3456541 · filings Lowell Charity, 501(c)(3) $595,335 Prison Book ProgramEIN 20-3235673 · filings Quincy Charity, 501(c)(3) $593,203 Dimensions Educational Consulting IncEIN 82-2019412 · filings Newton Center Charity, 501(c)(3) $574,558 Communities For Restorative JusticeEIN 45-1220191 · filings Boston Charity, 501(c)(3) $525,578
The 56 largest →
Matched by IRS activity code and listed by the revenue on the organization's latest return. Inclusion is not an endorsement; check an organization's own site and filings before you give. Gifts to 501(c)(4) and 501(c)(5) organizations are not tax-deductible.
Source: IRS Exempt Organizations Business Master File . Updated Nov 9, 2026.